Hobby Electronics Basics

Minimalist landline telephone set (no chips)

Is it possible to buy a minmalist landline telephone set nowadays? I meant one that has NO chips nor ICs, no Wifi, no F...

0 comments posted 5h

posted by toylet.toylet

0 comments posted 5h posted by toylet.toylet

Books about oscilloscopes

Can you, please, suggest books about oscilloscope triggers ? Thanks ! --------------= Posted using GrabIt =------------...

2 comments posted 1w

posted by electro.dillon

2 comments posted 1w posted by electro.dillon

商

[HK01]USB插口五種顏色代表不同規格　藍黑白紫綠可辨別快充速度與廠商 全文見: -- @~@ Simplicity is Beauty! Remain silent! D...

0 comments posted 1mo

posted by toylet.toylet

0 comments posted 1mo posted by toylet.toylet

Re: Discharging a wireless USB keyboard for long-term storage

> > What's the fastest way to discharge the internal rechargeable battery in a wireless USB keyboard? > > The white key...

8 comments posted 1mo

posted by nospam

8 comments posted 1mo posted by nospam

Re: Are chips more vulnerable to witchcraft than transisters?

> > Are chips more vulnerable to witchcraft as they got thinner and narrower? > They're generally scale-invariant. The...

19 comments posted 1mo

posted by nospam

19 comments posted 1mo posted by nospam

OpenCockpit prototype 2 - YouTube

OpenCockpit prototype 2 - YouTube -- @~@ Simplicity is Beauty! Remain silent! Drink, Blink, Stretch! / v \ May the Forc...

0 comments posted 6mos

posted by toylet.toylet

0 comments posted 6mos posted by toylet.toylet

Cleaning wires with isopropyl alcohol?

Hi. Is it okay to clean wires with 99% isopropyl alcohol? Does it degrade the plastic insulation or anything like that?...

3 comments posted 11mos

posted by christopher

3 comments posted 11mos posted by christopher

really?

While repairing some old oscilloscope I studied its schematic a bit to learn how they managed to build it just with 3 t...

1 comments posted 1yr

posted by rodiongork

1 comments posted 1yr posted by rodiongork

Re: Spice Model for ADI 500MHz Four-Quadrant Multiplier Added to my Website

> Hello, > Where can I find your AD834 spice model today? Jim Thompson died some years ago - or at least we are fairly...

8 comments posted 1yr

posted by bill.sloman

8 comments posted 1yr posted by bill.sloman

DC motor reversing

Hi there I am no electronics geek And I am wondering whether it is possible to get a C motor circuit without relays (may...

2 comments posted 2yrs

posted by iam

2 comments posted 2yrs posted by iam

Re: WHAT IS THE SPEED OF ELECTRICITY? (2025 Update)

Electricity itself does not have a single "speed" in the way that physical objects do. Instead, electricity refers to t...

0 comments posted 2yrs

posted by jossbuttler1337

0 comments posted 2yrs posted by jossbuttler1337

Scope use question

I'd like to use both traces on my scope to look at 2 voltages that are without a common reference. E.g., across R1 & ac...

10 comments posted 2yrs

posted by BobEngelhardt

10 comments posted 2yrs posted by BobEngelhardt

Power Calc

Okay, here's anohter dumb quesiton. Say I have a resistor across the mains power supply. Say its 10k for argeuments sak...

2 comments posted 3yrs

posted by dhg99908

2 comments posted 3yrs posted by dhg99908

Resistors in parallel

Hi guys, I need to make up a 15k 4 Watt resistor from a selection of half Watt resistors in parallel. But the math is a...

3 comments posted 3yrs

posted by dhg99908

3 comments posted 3yrs posted by dhg99908

New Motor Has Much Greater Torque/Power Than Old

Yet just using "throttle" [no pedal assist] doesn't seem much better. First and only theory: the torque sensor ripped a...

0 comments posted 3yrs

posted by bretcahill

0 comments posted 3yrs posted by bretcahill